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公开(公告)号：US20170280184A1
公开(公告)日：2017-09-28
申请号：US15504823
申请日：2015-08-18
Inventor： Masayuki KOZUKA , Naoshi USUKI , Toshiroh NISHIO , Satoshi TAKAHASHI , Takahiro NISHI
IPC: H04N21/40 , H04N7/04 , G11B27/031 , H04N5/44
CPC classification number: H04N21/40 , G11B27/031 , H04N5/44 , H04N5/4401 , H04N5/775 , H04N7/04 , H04N21/436 , H04N21/43635
Abstract: An AV signal transmission and receiving system capable of appropriately receiving an AV signal includes a source apparatus and a sink apparatus connected to the source apparatus via an HDMI (registered trademark) cable. The sink apparatus includes: an AV signal receiving unit which receives an AV signal via the HDMI cable; a memory which holds the EDID; a rewriting unit which rewrites the EDID; an HPD control unit which controls output of an HPD signal; and a determining unit which: determines whether the AV signal which has been received is an HDMI signal conforming to an HDMI standard or a digital visual interface (DVI) signal; and when the determining unit determines that the AV signal is a DVI signal, instructs the rewriting unit to rewrite the EDID and instructs the HPD control unit to output the HPD signal indicating that reading of the EDID which has been rewritten is possible.
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公开(公告)号：US20170272687A1
公开(公告)日：2017-09-21
申请号：US15613494
申请日：2017-06-05
Inventor： Masayuki KOZUKA , Tadamasa TOMA , Kengo TERADA , Takahiro NISHI
CPC classification number: H04N5/57 , G06F3/14 , G09G2360/16 , G09G2370/022 , G09G2370/04 , H04N5/20
Abstract: In a converting method for converting luminance of an input video in order to display the video on a display device, the luminance of the video is a first luminance value in a first luminance range where a maximum luminance value is defined as a first maximum luminance value that exceeds 100 nit. The method includes acquiring a first luminance signal indicating a first luminance value of the video, selecting a luminance converting process to be executed from among a plurality of luminance converting processes based on a reference luminance value corresponding to reference reflectance included in first meta data of the acquired first luminance signal, converting the first luminance value indicated by the acquired first luminance signal into a second luminance value in a second luminance range where a maximum luminance value is defined as a second maximum luminance value that is smaller than the first maximum luminance value and larger than 100 nit based on the selected luminance converting process.
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公开(公告)号：US20170251244A1
公开(公告)日：2017-08-31
申请号：US15593478
申请日：2017-05-12
Inventor： Masayuki KOZUKA , Tadamasa TOMA , Kengo TERADA , Takahiro NISHI
IPC: H04N21/4363 , H04N21/4402 , H04N7/015 , H04N21/835 , H04N5/92 , H04N21/432 , H04N21/4408
CPC classification number: H04N21/43635 , H04N5/92 , H04N7/015 , H04N7/167 , H04N21/4325 , H04N21/4402 , H04N21/440263 , H04N21/4408 , H04N21/835
Abstract: A playback method according to one aspect of the present disclosure is performed by a playback device connected to a display device. The playback method includes obtaining a type of the display device; selecting each of a version of High-Definition Multimedia Interface (HDMI) and a version of High-bandwidth Digital Content Protection (HDCP), according to the obtained type of the display device; obtaining a video signal of content recorded on a recording medium; decoding the obtained video signal; encrypting the decoded video signal using the selected version of HDCP; and outputting the encrypted video signal to the display device using the selected version of HDMI.
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公开(公告)号：US20170251190A1
公开(公告)日：2017-08-31
申请号：US15596190
申请日：2017-05-16
Inventor： Tadamasa TOMA , Masayuki KOZUKA , Hiroshi YAHATA , Takahiro NISHI , Kengo TERADA
IPC: H04N9/87 , H04N11/24 , H04N21/431 , G11B20/10
CPC classification number: H04N9/8715 , G06F3/14 , G11B20/10 , H04N7/0125 , H04N7/015 , H04N9/642 , H04N9/87 , H04N11/002 , H04N21/431
Abstract: A method to be performed by a playback device includes determining whether the playback device has a function for converting first graphics in a second luminance range narrower than a first luminance range to second graphics in the first luminance range, when the playback device has the function, converting the first graphics to the second graphics, and displaying a video in the first luminance range with the second graphics being superimposed on the video, and when the playback device does not have the function, displaying the video with third graphics different from the second graphics being superimposed on the video.
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公开(公告)号：US20170237934A1
公开(公告)日：2017-08-17
申请号：US15583090
申请日：2017-05-01
Inventor： Kengo TERADA , Masayuki KOZUKA , Takahiro NISHI , Tadamasa TOMA
CPC classification number: H04N5/57 , G06F3/14 , G09G5/10 , G09G2320/0276 , G09G2370/04 , H04N5/20 , H04N5/76 , H04N7/01 , H04N7/0125 , H04N7/015 , H04N9/7925 , H04N9/87
Abstract: A display system includes a conversion apparatus converting video luminance including a luminance value in a first luminance range and a display apparatus connected thereto and displaying the video. The conversion apparatus includes a first acquisition unit, a first luminance converter, a second luminance converter, a quantization converter, and an output unit outputting a third luminance signal to the display apparatus. The display apparatus includes: a second acquisition unit acquiring the third luminance signal and setting information indicating display settings recommended to the display apparatus in display of the video; a display setting unit setting the display apparatus, using the setting information; a third luminance converter converting a third code value indicated by the third luminance signal into a second luminance value compatible with a second luminance range, using the setting information; and a display controller displaying the video on the display apparatus based on the second luminance value.
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Patent Agency Ranking
公开(公告)号：US20250085543A1
公开(公告)日：2025-03-13
申请号：US18286346
申请日：2022-04-18
Inventor： Masayuki KOZUKA , Yoshihiro MORI , Junya SUZUki , Yoshiichiro KASHIWAGI , Yasutoshi YAMAMOTO , Toshiro NISHO
Abstract: A video display system includes: an observation device, a data obtainment unit that obtains data related to a movement direction of the capturing unit, and a metadata composition unit that obtains metadata based on the obtained data; and a VR device including: a reception unit that receives the metadata; an orientation estimation unit that estimates an orientation of the display device; a differential calculation unit that calculates a relative movement direction of the capturing unit based on a difference between the orientation of the display device and the movement direction of the capturing unit in the metadata; a presentation unit that presents the calculated relative movement direction to a user of a display device; a video generation unit that generates a display video; and a VR device including a display device that displays the display video.
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公开(公告)号：US20230156148A1
公开(公告)日：2023-05-18
申请号：US18100114
申请日：2023-01-23
Inventor： Tadamasa TOMA , Kengo TERADA , Masayuki KOZUKA , Takahiro NISHI
IPC: H04N7/01 , G06F3/14 , G09G5/10 , H04N5/20 , H04N23/71 , H04N23/76 , H04N7/015 , H04N9/64 , H04N21/462 , H04N11/20 , G06T5/00 , G09G5/02
CPC classification number: H04N7/0125 , G06F3/14 , G09G5/10 , H04N5/20 , H04N23/71 , H04N23/76 , H04N7/01 , H04N7/015 , H04N9/642 , H04N21/4621 , H04N9/64 , H04N11/20 , G06T5/009 , G09G5/026 , G09G2320/0276 , G09G2370/04
Abstract: A conversion method for converting luminance of a video, including a luminance value in a first luminance range, to be displayed on a display apparatus includes: acquiring a first luminance signal indicating a code value obtained by quantization of the luminance value of the video; and converting the code value indicated by the acquired first luminance signal into a second luminance value determined based on a luminance range of the display apparatus, the second luminance value being compatible with a second luminance range with a maximum value smaller than a maximum value of the first luminance range and larger than 100 nit. This provides the conversion method capable of achieving further improvement.
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公开(公告)号：US20220237321A1
公开(公告)日：2022-07-28
申请号：US17613739
申请日：2019-11-08
Inventor： Masayuki KOZUKA , Kohsuke YAMAMOTO , Tomoki OGAWA , Masaya YAMAMOTO , Junya SUZUKI , Hiroki URABE
Abstract: An information management device includes: an obtainer that obtains first company information and personal information from a first company, the first company information relating to a first product or service of the first company, the personal information relating to a user who has purchased the first product or who has been provided with the service; a company information storage that stores the first company information obtained; a personal information storage that stores the personal information obtained; an integrator that integrates the company information and the personal information based on a purchase record or a use record to generate integrated information, the purchase record indicating that the user has purchased the first product, the use record indicating that the user has used the service; and a manager that manages an output of the integrated information based on restriction information for restricting an output destination of the integrated information.
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公开(公告)号：US20220191425A1
公开(公告)日：2022-06-16
申请号：US17682139
申请日：2022-02-28
Inventor： Kengo TERADA , Masayuki KOZUKA , Takahiro NISHI , Tadamasa TOMA
IPC: H04N5/57 , G06F3/14 , H04N5/76 , H04N7/01 , G09G5/10 , H04N5/20 , H04N7/015 , H04N9/79 , H04N9/87
Abstract: A display system includes a conversion apparatus converting video luminance including a luminance value in a first luminance range and a display apparatus connected thereto and displaying the video. The conversion apparatus includes a first acquisition unit, a first luminance converter, a second luminance converter, a quantization converter, and an output unit outputting a third luminance signal to the display apparatus. The display apparatus includes: a second acquisition unit acquiring the third luminance signal and setting information indicating display settings recommended to the display apparatus in display of the video; a display setting unit setting the display apparatus, using the setting information; a third luminance converter converting a third code value indicated by the third luminance signal into a second luminance value compatible with a second luminance range, using the setting information; and a display controller displaying the video on the display apparatus based on the second luminance value.
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公开(公告)号：US20220159264A1
公开(公告)日：2022-05-19
申请号：US17592879
申请日：2022-02-04
Inventor： Tadamasa TOMA , Masayuki KOZUKA , Takahiro NISHI , Kengo TERADA
IPC: H04N19/136 , H04N19/85 , H04N21/41 , H04N21/4363 , H04N21/462 , H04N21/84 , H04N21/4402 , H04N21/63 , H04N19/44 , H04N19/46 , H04N19/70 , H04N7/025 , H04N7/08
Abstract: A data output apparatus includes: a video decoder that decodes a video stream to generate a first video signal; an external metadata acquisition unit that acquires one or more pieces of metadata corresponding to one or more first conversion modes; an HDR metadata interpreter that interprets one of the one or more pieces of metadata to acquire characteristic data and conversion auxiliary data; a DR converter that supports one or more second conversion modes and performs conversion processing of a luminance range of the first video signal based on the conversion auxiliary data to generate a second video signal; and an HDMI output unit that outputs the second video signal to a display apparatus.
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